/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
}

/* Body */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial,
    "Noto Sans TC", "PingFang TC", sans-serif;
  line-height: 1.6;
  background: #f8f9fa;
  color: #333;
  margin: 0;
  padding: 0;
}

/* Navbar */
.navbar {
  background: #2c5f8a;
  color: #fff;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar .brand {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
}
.navbar ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}
.navbar ul a {
  color: #fff;
  text-decoration: none;
  font-size: 0.95rem;
  opacity: 0.9;
  transition: opacity 0.15s;
}
.navbar ul a:hover {
  opacity: 1;
}

/* Main content */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* Headings */
h1 {
  color: #2c5f8a;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}
h2 {
  font-size: 1.15rem;
}

/* Table */
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}
th {
  background: #2c5f8a;
  color: #fff;
  padding: 0.6rem 0.8rem;
  text-align: left;
  font-size: 0.85rem;
  font-weight: 600;
}
td {
  padding: 0.5rem 0.8rem;
  border-bottom: 1px solid #e9ecef;
  font-size: 0.9rem;
}
tr:last-child td {
  border-bottom: none;
}
tr:hover td {
  background: #f0f4f8;
}

/* Links */
a {
  color: #2c5f8a;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  font-size: 0.78rem;
  font-weight: 500;
}
.badge-digital {
  background: #d4edda;
  color: #155724;
}
.badge-potential {
  background: #fff3cd;
  color: #856404;
}
.badge-normal {
  background: #e2e3e5;
  color: #383d41;
}

/* Warn */
.warn {
  color: #856404;
  font-size: 0.82rem;
}

/* Inferred notice */
.inferred {
  background: #fff8e1;
  padding: 0.6rem 1rem;
  border-left: 3px solid #ffc107;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  border-radius: 0 3px 3px 0;
}

/* Card */
.card {
  background: #fff;
  border-radius: 6px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  margin-bottom: 1rem;
}

/* Search form */
form.search-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
  align-items: center;
}
form.search-form input,
form.search-form select {
  padding: 0.4rem 0.6rem;
  border: 1px solid #ced4da;
  border-radius: 3px;
  font-size: 0.9rem;
  background: #fff;
}

/* Button */
.btn {
  padding: 0.4rem 0.8rem;
  border-radius: 3px;
  border: none;
  cursor: pointer;
  background: #2c5f8a;
  color: #fff;
  font-size: 0.9rem;
  transition: background 0.15s;
}
.btn:hover {
  background: #245071;
}

/* Pagination */
.pagination {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
  align-items: center;
}
.pagination a,
.pagination span {
  padding: 0.3rem 0.6rem;
  border: 1px solid #dee2e6;
  border-radius: 3px;
  font-size: 0.88rem;
  color: #2c5f8a;
  text-decoration: none;
}
.pagination a:hover {
  background: #f0f4f8;
}
.pagination .current {
  background: #2c5f8a;
  color: #fff;
  border-color: #2c5f8a;
}

/* Login page */
.login-page {
  max-width: 400px;
  margin: 8rem auto;
  padding: 0 1rem;
}
.login-page h1 {
  text-align: center;
  margin-bottom: 0.25rem;
}

/* Error message */
.error-msg {
  background: #f8d7da;
  color: #721c24;
  padding: 0.6rem 0.8rem;
  border-radius: 3px;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}